Dynamsoft's Barcode Reader SDK

What's slick about Dynamsoft's Barcode Reader SDK is that just a few
lines of code from scratch are required instead of potentially hundreds of
them, which could save months of development time. The updated Barcode
Reader SDK 4.2, which adds Linux PHP support, allows application developers
to embed functionality for decoding linear and 2D barcodes
into Web or desktop applications almost instantly, significantly reducing
development costs and costs of long-term application support.

Barcode recognition is
enabled from image files, scanned images and from images captured on
Webcams or smartphones. The new PHP barcode reader toolkit for Linux
supports PHP x64 versions 5.3–5.6. Both Thread Safe and Non Thread Safe
options are provided. The Dynamsoft toolkit works with Debian,
Ubuntu and CentOS. Support for Web applications in ASP.NET, in C# or
VB.NET, and PHP on Windows also is included, just in case.